Omega Seamaster Planet Ocean 6000M "Ultra Deep" 45.5mm O-MEGASTEEL Gradient Grey Dial Bracelet 215.30.46.21.06.001

The Omega Seamaster Planet Ocean 6000M Ultra Deep is one of the most technically ambitious dive watches in production, and reference 215.30.46.21.06.001 represents it at its most attainable yet uncompromising. Introduced as a tribute to the deep-sea submersible that carried Omega timepieces to the deepest point in the ocean—the Mariana Trench's Challenger Deep—the Ultra Deep collection elevated the already-legendary Planet Ocean line into true instrument territory. Wearing one is a statement about where serious horology and extreme exploration converge.

At 45.5mm, the O-MEGASTEEL case commands the wrist with authority. O-MEGASTEEL is Omega's proprietary alloy, engineered for enhanced hardness and corrosion resistance compared to standard 316L stainless steel, making it an ideal material for a watch designed around the demands of the deep ocean. The architecture of the case reflects the barrel-shaped geometry that gives the Ultra Deep its distinctive silhouette, immediately differentiating it from the standard Planet Ocean family.

The gradient grey dial is the visual centerpiece of this reference. Moving from a deeper tone at the center to a lighter periphery, the gradient creates a sense of depth and dimension that rewards close inspection. A combination of applied index markers and bold Arabic numerals ensures instant legibility in any lighting condition, while luminescent material keeps time readable in the dark—exactly what a professional diver requires. The overall dial composition is sophisticated enough for formal settings yet purposeful enough for the water.

The black ceramic bezel provides the functional countdown tracking that defines the dive-watch genre. Ceramic is prized for its scratch resistance, color stability, and long-term durability, ensuring the bezel retains its deep, rich finish through years of hard use. The O-MEGASTEEL bracelet echoes the case material, giving the watch a cohesive, integrated look while offering the corrosion resistance and strength the Ultra Deep demands. Finished with a secure diver's extension clasp, the bracelet is comfortable on the wrist and ready for active use.

Powering the 215.30.46.21.06.001 is Omega's Co-Axial Master Chronometer movement, a caliber certified by METAS—the Swiss Federal Institute of Metrology—to meet the most stringent accuracy, anti-magnetic resistance, and performance standards in the industry. The Co-Axial escapement reduces friction and extends service intervals, while Master Chronometer certification guarantees resistance to magnetic fields of 15,000 gauss. This movement platform represents the current apex of Omega's watchmaking capability.

Bizak and Co. is pleased to offer this Omega Seamaster Planet Ocean 6000M Ultra Deep reference 215.30.46.21.06.001 brand new, complete with box and papers. Buying new means full manufacturer warranty coverage, untouched factory condition, and the confidence that every component is exactly as Omega intended. Whether you are a serious collector, an active diver seeking an instrument equal to the task, or a first-time luxury watch buyer looking for a timepiece with genuine heritage and technical substance, this is a watch worth owning. Reach out to our team at bizakandco.com to purchase or learn more.